Printhead assembly



FIG. 1 is a perspective view of the printhead assembly;

FIG. 2 is a front view;

FIG. 3 is a back view;

FIG. 4 is a right side view;

FIG. 5 is a left side view;

FIG. 6 is a top view; and,

FIG. 7 is a bottom view.

Broken lines are to disclose environment related to the claimed design, but not forming part of the claimed design. 

The ornamental design for a printhead assembly, substantially as shown and described. 